CFR›Title 37›Chapter I›Part 7›Subpart C ContainsSection 7.21CorpusDaily eCFRDisplayed edition2026-04-15Last updated2026-04-15 Subpart C—Subsequent Designation Submitted Through the Office Sections 7.21 § 7.21 Subsequent designation. Previous B Subpart B—International Application Originating From the United States Next D Subpart D—Recording Changes to International Registration